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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Statistical Properties of Cell Topology and Geometry in a Tissue-Growth Model
verfasst von : Patrik Sahlin, Olivier Hamant, Henrik Jönsson
Erschienen in: Complex Sciences
Verlag: Springer Berlin Heidelberg
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Statistical properties of cell topologies in two-dimensional tissues have recently been suggested to be a consequence of cell divisions. Different rules for the positioning of new walls in plants have been proposed, where e.g. Errara’s rule state that new walls are added with the shortest possible path dividing the mother cell’s volume into two equal parts. Here, we show that for an isotropically growing tissue Errara’s rule results in the correct distributions of number of cell neighbors as well as cellular geometries, in contrast to a random division rule. Further we show that wall mechanics constrain the isotropic growth such that the resulting cell shape distributions more closely agree with experimental data extracted from the shoot apex of
Arabidopsis thaliana
.